I hope no one even mentioned anything done by Cinar, another Canadian production company. Two of my favorites were The Busy World of Richard Scarry, and Are You Afraid of the Dark? (the latter I was too frightened to watch, especially with the opening sequence, but the former was what I enjoyed the most.)
Has anyone heard of Incredible Story Studios, an award-winning show from the late-90s where everyday children send in their own ideas to be written for the show? That show in fact was Canadian, and to prove it, I have the show on two separate store-bought DVD's, each with four different episodes on it.